On a scale from "student driver" to "safelite guy (or any other professional who drives around as part of their job) running late" how does it handle storrow and similiar?

Like does it get naively caught in stopped traffic for turns it could lane change out or does it fucking send it?

I don't drive in Boston, but there is some impatience factor and it will make human-like moves out of correct-but-stopped lanes into moving ones. It'll merge into gaps that feel very small when it doesn't have other options.